Twisting machine



June 2, 1931.

J. JULIA I 1,808,415

TWISTING MACHINE Filed Jan.l 5, 192g.

Patented June 2, 1931 UNITED triarr-s PATENT oFFicfi:

' .rosen JULI, or BARCELQNA, ASPAIN' TWISTING MACHINE Application filedJanuary Hitherto most :of .the types ot twisting machines for thepurpose of vtwisting.threads .of textile fibres,l present .the.important-,dis` advantage ofsnotpossessing means for volun- `5 taryoi'k automatic arresting-of the individual spindles, and where suchmeans are provided ythe application is accompanied by important "1lvidua-l, voluntary or 'automatic arrest of the spindles i-u' continuoustwisting machines, in .which these latter are moved bycords, bands,`gears-or by friction devices, is accomplished,

rthevends ofthreads'o'fall textile Ilibres. The `stoppage is eiiectedwith complete independence .et the spindles in relation 'to one another,and Without the arrest 'beingdzue tothe `slidi-ngot any one element.upon another, but simply by the disconnection of lthe spindle from thecorresponding drivin-g pulley, the two elementsv remaining 'thus fromthat momentycompletely independent., By such means thefarrest etftliespindle is produced automatically on the ending Oron the 'breakingof any one of the 'threads that 1are being twisted, in :their coursefrom the rack where they are supported in ythe lform of bobbins,

feeding icylinders. The stoppage also occurs when :the twisted threadbreaks in its course from-,the feeding` cylindersrto thespindles.Itwifl'l be understood that it is .possible t0 effect thearrestofmovement at any moment and always with one spi-n pendentot theothers. i

In all such cases as 'indicated above, the arrest ot 'movementis'leiiectedby the disengagement of the spindle: andthe corre-'spendingv driving '.,pu'lley, which lup 'to that nmoment 'have beenconnected to rotate together, 'these two elements being .renderedcompletely independent after the said dis- 'engagemenawliereby thespindle comes to and yalso in machines intended for twisting balls, or`the like `until 'their arrival at the i le completely indei `5, 192B,Serial No. 330,582, and vinSpain, October "1D, :1928.

rest and the corresponding pulleyy continues .its normalrotary movement.

'The automatic arrestment of movement is obtained by 4the change :inlposition vof the K ythread .guides `which occurs when the thread 55breaks or 'is used'up, the said guides falling .atrthatinstant to acertain extent and being pushedby small eceentrics o'fasuitable form,thedisengagement of vthe mechanism being elected thismovement. e 60 Thenthe arrestment of movement is to be V.produced Aas consequence of theexhaustion 'of the thread supply or ruptureot an-alreadytwistedthreadfthat .is to say, inthe course M lbetweenthe-guidecylinders and thespindle, 65 this is eilected'by thel action ofa threadguide lever which in its turn releases the stopping mechanism.The lever may. also ybe operated byhand vat will, producing :the sameeffect e k upon the spindle. i Y y t lThe accompanying drawingsrepresent by wayof renarnp'le .a construction according to theinvention. y y e Y V Figure lis a side elevation partly in section,otmechanism applied to the operation 'i5 of a lbobbin spindle .of atwisting machine.

Figure Y2 is a detail inperspective ol a number of hooks for :theadmission'ofthe ends er threads .cornespondingto those to be twisted byeachspi-ndle.- 1 o Figure 3. is' a detail of 4one ot the elementslillustrated in Figure .2 Vindicatedseparately for sake oi'fclearness. i

Figure 4 's-a plan ofthe for-lroperating` lever for effectingitsconnection.vv f ,Y Figure 5 isfafdetail on a larger scale of theconnecting 'arrangement with `the' yparts of ,which itJ is constituted:slightly separated .from lone another for the sake of-clearness.

Figure 6 is la plan of acorresponding part 90 iof 4the'arrangement tor4the engagement of eachspindle. y ,l As illustrated in the accom-panyingdrawings a supporti corresponds to the fixed part ;y

of the twistingmachine, vthis sup-port carry- 95 l ling .at 2 a rotaryspindle which possesses, corresponding to the function of each spindle,an eccentric y3 Vvhaving an enlarged-part 4. At .5 iis a cursor armwhich-censistsof two branches y Y' 6 and r7. The extremity of 'thebranch 6 car- 100 p 60 catch 39; if? The ries the support 8 of acylinder 9 serving to conduct the threads which are to be twisted uponeach spindle; the said threads pass over another spindle 10 and over apulley 11 before passing through the guide 12 and arriving at thetwisting bobbin 13. These threads are indicated by dot-and-dash linesupon the drawing.

The branch 6v of the cursor arm 5 extendsin 10 aI downward direction bymeansof a part 14 which tends to be drawn in an upward direction by theaction of a spring connected at one extremity to a hook 16 integrally Aprovided on the part 14 and at the other extrem 15 ity to pin 21 on thefixed part 1 ofthe machine. rlhe part 14 is provided with a head 17 uponwhich is mounted a step 18 which engages a plate 19 integral with thefixed part 1 of the machine,and the arm 5 may be per- 20 ,mitted a smallsliding movement 'as it is supported only the plate 19.

' vThe branch 7 of the cursor arm 5 `atits extremities thread `by meansof projection 2O upon comprises form of hooks at their upper part andlat their lower part they are fixed in the corresponding catches 25,26,27 and 28 which turnpfr'eely upon the spindle `29, and hang Vunder'their 30 l own weights upon the support 30('Figures Vl and 2) unlessthe tension of the threads which respectively pass through the hooks ofthe v'rods 21, 22, 23 and 24 compels them to become raised. Theoperation is such that whenon'e or a number of the catches 25 26, 27 or28 he "41.0 `tension of the threads whichpass "through their hooks,these threads being those which "are to be twisted together. p The fixedplate Y19 comprises integralcheeks "`31'which supportthe spindle 32 of alever 34, 35 which Vat one extremityk '#34 carries the thread Vguide 12and at ,the other 35`carries an abutment'36 adapted to` bei controlledin its position'by means of the-screw g fThis abutment36 servesasitheisupport of 'H50 the rod 38, jointed tol the Vcat`chl39 (Figure2),

placed ,upon the same axis as: thejcatches ..25-28 so that as longasthesupport continues, the catch 39 is raised from itsse'at upon theplate 30 (Figure-11), but if the abutment 36 descends, therod38-descending also, the catch 39 falls upon the'plat'e30 andundergoespressure from the projecting part 4 ofthe eccentric 3. Thisoccursbe'cause the /frod 38 is'joined to the small 'arm-39" ofthe part14 Yis connected at its-lower-e'nd `to a double crank 40`which at itslower 'end is connected to a rod 41 by which'it is-joined "tothe'angle'piec'e 42 fixed upon the's'tationary support 43,1supportingabobbinsueh as 1:3

guide rods 2i, e2, es,Y 25 and 24 (Figure 2) which are. made in theandthe parts which are hereafter referred to. The rod 41 guidesthe'crank 40, the part 14 and the arm 5 to which is firmly jointedV thepart 14 in their upward'and downward movements. At 44 a fork lever 45(Figures 1 and 4) whose pivotal axis is at 46, is mounted upon the part40. The other extremity of this lever isA connected to a second fork 47provided with two freely mounted conical rollers 48, 49 (Figure 4)whichare supported upon a conical cap 50 (Figure 1), the rollers beingindicated in Figure 1 because V-vone .part of the fork is removed, andthe other part isv disposed behind the axis of the bobbin. The cap 50is-able to slide along `the axis 54 of the spindle.

L Upon the supporting frame 43 on which ismounted vthe mechanism of thespindles,

1s mounted at itsupper part by means of a bearing at 55 leavingapcertain amount of annular space in order that the lubricant, may risebetween it and the sleeve 51; the'-l sleeve 53 itself is provided withperforations such as 53 to allow passage for the said lubricant towardsthe spindle 54. jThe spindle 54 of the bobbin' is not adjusted-exactly`With the 'sleeve 53, that is greater part of their length theparts arenot infcontact, whereby the usual wear ofthe bobbin Aspindle isavoided." This spindle lfunctions normally, althoughit may be subjectedtodeviations the driving element, by'reasonof the freedom of movement`afforded bythe semi-spherical head 55 provided at the upper part of the:sleeve 53, andwhich will' adjustV itself in the ,'85 53 which carriesthe`l tofsay, upon the? `1o0 in relation'to the axis of hollowsemi-sphericall seat-in the upper part of the supportingsleeve 51'.VThis action is permissible in view of the factthat' thecoupling-.between thespindle and the driving elelment, forwhichprovision is made in the cylindrical casing 63 of the pulley56,7a'shere# -ina'fter described,i's elastic, as that is to say,

`the's'aid coupling renders oscillation of the spindleof'11o-importance.V f

61 and 62 are smallsprings which are su portedvon inclined planesprovided at the lower part of the' sleeve' 53. These springs `acttobalancethe sleeve 53 in, position and 1 to ensure .the satisfactoryseating of the head 155 upon its seat and to absorb the vibrations whichmayl beproducedin the spindle. The pulley 5.6 which engageswith the end-,less beltwhich drives the spindlel is shown in section. This pulleyismounted on races of ball 4bearings 57 and 58v their cones 59 and 60beingtixed firmly tothe sleeve 51'. The' lpulley 56 isfixedlirmly toacylindrical cas- .,ing63formed 'on the interior with recesses suchas'64, which engage mutually with profjections on a gearwheel"65,ffthe`wheel turns i of cork, or 'of Vany other elasticmaterial,

Vadapted to establish a good frictiona-l contact. `A wheel or disc 67(Figures land 5) is .firmly lixed to the axle 54, and contains orificessuch as 68, 69, .70, which are penetrated freely by rods such as 71, 72,Aand 73, `fixed -in another disc 74 which is lable to slide right alongthe same spindle "54. The Arods (71, .72, 73 etc.) pass freely throughlthe cen- .tra-l orifice (Figure 6) yof the gear wheel 65 4@n the rods71, 72, 73 (Figures 1 and '5) :are mounted compression springs such as76, -7 8 (F igure-5) which are-supported-atone end by the disc 467 andat the'other by pins such as 79, 80, which cross the rods 71, 72, 73 attheir upper parts. The action of these springs is such that the discs 67and 74 together with the gear wheel, form a coupling, strengthened bythe elastic pieces such :as'66 (Figure 6). This coupling vhas `its partsdis: engaged, ,producing the disengagement of gears, on depression ofthe cap v5C),- because this cap, depressing the heads of the rods 71,72, 73 overcomes the Aactionof the springs 76, 77, 78, causing thedepression of the disc 74; yand the contact or coupling pressure -ofvthe Vjoint or .the gear wheel 65 with the disc -67 and 74, diminishing,the rotation fof the said gear Wheel .remains free and independent ofthe casing 63 andthe pulley 5'6 stilljremaining free on the axle 54ofthe' spindle.

The mechanismfunctions vas follows: The threads which are lto betwistedon each bobbin being passed through the hooks-corresponding tothe Irods v21, 22, 23 `andv24 (Figures 1 and 2) as well as on totheconductingcylinders 9 and 10 and the .pulley 11 (Figure 1i) and dashlline 81, next the bobbirn 13. If in the working ofthe machineone of thethreads is broken, the corresponding guide e. g'. 21 becomes free of thethrust or tension of the thread a-ndV the catch 25 .falls under-its. ownWeight on to the support 30. The jutting lembossment 4 tof the eccentric3 pushes the said catch-,25 vand displaces the arm 5 from yright toleft, the step 18 vfalling out'of its supports With-the Vplate 19, soythat the arm 14 vr-ises under the'action of the spring 15, andthe lever45,A because ofthe joint'44 and of .its-pivot46, vmoves so `thatthe-conical rollers 48,49 (Figure 4) depress .the cap 50 (Figures 1 and5) upon which, the axle 54 of the spindle 'is put 'out -of gear by theAbearringof the Icasing 63 and hence Ithe pulley 56, whichreceivesmotion from the endless Vbelt as has been explained isconsequently stopped. l At the same time, following-thedisplacementofthe arm 5,-'the cylinder 9 vbreaks contact Withthe roller10from 'which it receives its :motion and consequently the supports ofthe spindle 13 remain susgpended. f

If the already twisted thread Vbecomes Vbroken between 4the roller10-and ythe spindle 13, the arm ofthe vlever 34 will befreed from 4thetensionlof the said thread, and the Ylever v34, 35, which whenfunctioning normally is in equilibri-um, loses this equilibrium, theabutment 36 descending. rilhen the rod`38 remaining free, the catch 39(Figure) yWould fail on the part 30, being pushed by the pro- -jection 4(Figure 1) of the eccentric 3, so that .they would produce-as we havesaid, the

'higher displacement of the arm 5, the disco'nne'ction'of -the step 18from the part 19, the Afunctioning 'of the lever 45 and the pushing 'ofthe cap 50 -by the conical rollers 48,149 (Figure 4) the mechanismfunctioningrasidescribed 'above and thus the spindle 13 (Figure l) is.stopped.- Y

@nce .the broken'threads have been mended 'the Workman replaces the arm5 into its `vvorking position and the machine continues nor-V Y rThedisengagement of the above described gear, which as yhas been seen isautomatic, is `e'lfected in order to obtain the stoppage lof leachbobbin of the machine at will and to do vwhich it is only Vnecessary to"move by hand the arm 5 `orrthe lever 34, 32 and 35.

The lubrication of the casing 52 and of the Vaxle of the-spindle, takesplacefby meansofa the axle -54 of the spindle, the coupling of Y .p85

reserve chamber 82 (Figure 1) Vwhich communicates by a 'tube 83, bentinto the bottom fi of the-said boX `52. The lubricantbesides rising upthe axle 54, the slee-ve v53, and the -c'asing`51 natu-rally, risesstillmore under the action of `centrifugal force developed by the rotation ofthe-axle 54 of `the spindle and sov :arrives at `the cap 55 yand fromthere, by the openings existing :between the various partsVofithepuflley 56, the sleeve 511,*and the casing 64,'t'he saidlubricant arrives at'the ball bearings 57, 58. The tube 83 stands insidethe vvessel '82 and receives ,the lubricant Aby means of a Wick 84 in afine jet in spite of which the llubricant vis accomplished perfectly.

I claimtf 1. 5L-driving `mechanism for the spindlesl of twisting`machines for twisting threads, permitting freedom offlateraflinclination to the said spindle, comprising a'supporiting .sleeve forvthe said spindle, a vdriving ele-N ment rotatably mounted upon thesaidsupf "porting sleeve, a bearing sleeve in 'which Ythe :ax-is of thespindle AV:relatively to the'aXis of mechanism, substantiallyashereinbefore dethe driving element', lsubstantially as here?v inbeforedescribed.

said spindle, rods carried by the said slidable disc which penetrateholes in the iirst disc, the said discs being concentric with' thedriving member which is provided of annular form, a driven memberslidably`engaged with the said driving member and capable discs upon thesaid spindle, springs concentric with and engaging the said rods. forpressing the two discs relatively vtowards each other to engage the saiddrivenmember. and a slidable member mounted on the said spindle adjacentthe ends ofthe said rods to apply pressure upon the said rods when thediscsare required to bedisengaged against the actiono-f the saidsprings, substantially as hereinbefore described.

3. A driving mechanism for the spindles of twisting `machines fortwisting threads according to claim 2, having a cylindrical drivingmember with the `inner surface formed with a plurality offrecesses in'adirection parallel with the axis, and a driven member formed on itsperipherywith a. plurality of teeth toengage the recesses of the saiddriving member, the said recesses and teeth being so formed astofperinit'relative inclination of the a'xesot the.V driving and' drivenmembers in operation of the driving scribed.`

4. A driving mechanism for thespindles of twisting machines for twistingthreads according to claim2, having a cylindrical driving member withthe inner surface formed with a plurality of recesses in adi-V rectionparallel with the axis and a driven member formedon its periphery witha'plurality of teethYto-engage the recesses of the said driving member,the said recesses and teeth being` of a form to permit relativeiniclinationl of the axes of the driving and driven members, and saiddriven member beingprovided with a plurality of elastic projections toengage the discs mounted upon the spindle, substantially as hereinbeforedescribed.

f 5.v A -driving mechanism for thespindles of .twisting machines fortwistingthreads,

'rotatably mounted. upon the said supporting u sleeve, ya bearing sleeveniii-'which 'the spindle is rotatably mounted, the said- 'bearing sleevebeing closed at the lower end and formed with a semi-spherical headwhich is received in a vseini-spherical hollow in theupper end N of thesupporting sleeve, thefsaid bearing sleeve fitting loosely within thesaid supporting sleeve so that its axis may be inclined relatively tovthe axis of thev supporting sleeve, and a coupling between the saidspin- 'dle and the said'driving` element comprisingcoupling platespartly carried by said' spindle and partly engaged by said drivingvelement, thesaid engagement permitting inclination to the axis of thespindle relatively to theaxis of thedriving elementffsubstan Vtiallyas'hereinbefore'described.

Yof inclination relatively thereto, the said driven member beingdisposed between the 6. driving mechanism for the spindles of twistingAmachines Vfor twisting threads,

permitting freedom of lateral inclinationto the said spindle',comprising a supporting sleeve for the said spindle,A ball bearingsexterior `to Vthe said supporting sleeve, a 'driving element supportedby the said ball bearings, a bearing sleeve for the said spindle closedat the lower end andforniedwith a semi-sphericalhead, said bearingsleeve being concentrically disppsedrand loosely fitted within the saidsupporting sleeve with the semi-spherical head received intoa semi'Vpartly carried by the said spindle and partly engaged with the saidextension of the driviitting of the bearing sleeve withinvthe/supporting sleeve permitting inclination of the sleeve, abearingvsleeve forthe said spindle closedat the lower end and formedwith a spherical hollow at the upperend ofthe 'supporting sleeve', thesaid bearing sleeve being loose vwithin theVV said supporting sleeve,

springs seated within the saidsup-porting sleeve'and engaging inclinedseatings upon the bearing? sleeve so' disposed that the springs-tend topress-'the be'aringjsleeve downwardly within the supporting Vsleevewhilepermitting lateral yinclination of the ling element, the saidengagement and the --sleeve for thesaid spindle. a drivingeleinentYrotatably mounted `upon the vsaid supporting semi-spherical head forreception in a seinisaid bearing sleeve relatively to the saidsupporting sleeve, and a coupling between the said spindle and the saiddriving element comprising coup-ling plates partly carried by the Saidspindle and partly engaged by the said driving element, the saidengagement permitting inclination of the axis of the spindle relativelyto the axis of the driving element, substantially as liereinbeforedescribed.

JOS JULIA.

